sit on a thwart
thwart 作名词时指船上横跨船舷的座板，表示坐在上面常用介词 on。
The rower sat on the thwart and reached for the oars.
划船者坐在横座板上，伸手去拿桨。
（船上的）横座板；桨手座位
thwarts — plural of thwart
划船者坐的横座板；横跨船舷的横木；用作划艇的座位；与龙骨垂直的支撑,帮助维持船体宽度以抵抗外部水压,并可用来支撑船舷
划船者坐的横座板
A seat across a boat on which a rower may sit.
横跨船舷的横木；用作划艇的座位
a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat
与龙骨垂直的支撑,帮助维持船体宽度以抵抗外部水压,并可用来支撑船舷
A brace, perpendicular to the keel, that helps maintain the beam (“breadth”) of a marine vessel against external water pressure and that may serve to support the rail.
The rower sat on the wooden thwart and grabbed the oars.
桨手坐在木制横座板上，抓住船桨。
用法提示：thwart在此句中作名词，指船上的横座板，即桨手座位。
Each thwart in the old rowboat was worn smooth by years of use.
旧划艇上的每块横座板都因多年使用而磨得光滑。
用法提示：thwart作名词，指划艇上供人坐的横向座板。
Please do not stand on the thwart; it is only meant for sitting.
请不要站在横座板上；它只是用来坐的。
用法提示：thwart作名词，指船上的横座板。
thwart 作名词时指船上横跨船舷的座板，表示坐在上面常用介词 on。
The rower sat on the thwart and reached for the oars.
划船者坐在横座板上，伸手去拿桨。
用 across 说明横座板横跨船体的方向。
A wooden thwart stretched across the boat, giving each rower a seat.
一块木制横座板横跨小船，为每个划船者提供座位。
指一艘船上的多块座板时用复数 thwarts，常与 of 短语连用。
The thwarts of the boat were worn smooth by years of rowing.
这条船的横座板因多年划行而被磨得光滑。
在划艇语境中可指thwart，但seat也泛指任何座位，不如thwart专指船上横板。
bench通常指宽大固定的长凳，多用于公共场所，船用thwart更窄且兼作支撑构件，不宜完全互换。
crosspiece强调横向构件，未必可坐；仅在指船体横档时可勉强代用，但丢失了座位义。
grammar · medium
易错句子The rower sat on thwart and started to row.
正确表达The rower sat on a thwart and started to row.
thwart 是可数名词，单数形式前必须加不定冠词 a（或定冠词 the）。汉语名词本身不带冠词，学习者容易漏掉。
grammar · medium
易错句子The small boat has four thwart.
正确表达The small boat has four thwarts.
thwart 是可数名词，前面有数词 four 时须用复数形式 thwarts。汉语名词不随数量变化，学习者常忘记加 -s。
grammar · medium
易错句子The rower sat in the thwart.
正确表达The rower sat on the thwart.
thwart 是一块横板，人坐在其表面上，所以用介词 on；in 表示处于有围挡的空间内部，与横座板的实物特征不符，故应改为 on。
木制横座板
The wooden thwart was worn smooth by years of rowing.
这块木制横座板因多年划船已被磨得光滑。
独木舟横梁
The canoe thwart runs across the boat to keep its sides apart.
独木舟横梁横贯船身，使两侧保持分开。
中横座板
He stepped carefully over the middle thwart to reach his seat.
他小心地跨过中横座板，走向自己的座位。
桨手坐板
She leaned back on the rower's thwart and pulled the oars.
她靠在桨手坐板上，拉动船桨。
船上的横座板
The thwarts of the boat were solidly built and evenly spaced.
船上的横座板建造牢固，间距均匀。
坐在横座板上
We sat on a thwart while the boat drifted gently downstream.
我们坐在横座板上，小船顺流缓缓漂荡。
划艇是安装thwart横座板的典型船型。
划船者坐在thwart上用桨划水。
thwart横跨并支撑左右船舷上缘。
thwart与龙骨垂直，帮助维持船体宽度。
划桨者以thwart作为座位。
Choose the next layer that will help you use thwarts with more confidence.
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Dictionary facts from ECDICT, WIKTIONARY.